United States Navy 1939-1945

Ship Type	1939	1940	1941	1942	1943	1944	1945
Battleships	15	15	17	19	21	23	23
Aircraft Carriers	5	6	7	4	19	25	28
Escort Carriers	--	--	1	12	35	65	75
Cruisers	36	37	37	39	48	61	72
Destroyers	127	185	171	224	332	364	377
Frigates	--	--	--	--	234	336	361
Submarines	58	64	112	133	172	230	232
Mine Warfare	29	36	135	323	551	614	586
Patrol	20	19	100	515	1,050	1,183	1,204
Amphibious	--	--	--	121	673	2,147	2,547
Auxiliary	104	116	210	392	564	993	1,267
Total Active	394	478	790	1,782	3,699	6,084	6,768